High incidence of congenital toxoplasmosis in Brazil - Carvalheiro, Cristina Gardonyi; Mussi-Pinhata, Marisa Márcia; Yamamoto, Aparecida Yulie; Maciel, Léa Maria Zanini; Souza, C. B. S. de (World Congress of Pediatric Infectious Diseases - WSPID, 2002)